module.exports = function main(t,w) {
    t=Math.ceil(t);
    let result;
    if(t<=2)
        {
            result=6+0.25*w;
            result=Math.round(result);
            result+='元';
        }
    if(t>2&&t<=8)
        {
            result=6+(t-2)*0.8+0.25*w;
            result=Math.round(result);
            result+='元';
        }
    if(t>8)
        {
            result=10.8+(t-8)*1.2+0.25*w;
            result=Math.round(result);
            result+='元';
        }
    return result;
};